CN103754977B - Active carbon modification method for emergently treating sudden organic pollution of drinking water - Google Patents
Active carbon modification method for emergently treating sudden organic pollution of drinking water Download PDFInfo
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- CN103754977B CN103754977B CN201410021711.7A CN201410021711A CN103754977B CN 103754977 B CN103754977 B CN 103754977B CN 201410021711 A CN201410021711 A CN 201410021711A CN 103754977 B CN103754977 B CN 103754977B
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Abstract
The invention provides an active carbon modification method for emergently treating sudden organic pollution of drinking water and relates to an active carbon modification method. In order to solve the problem that the adsorption effect on organic pollutants in raw water by existing common active carbon is bad, the modification method comprises the following steps: pre-treating the powdery active carbon and mixing with pure water; putting a mixture into an ultrasonic generator to vibrate for 10-30 minutes by the sound intensity of 100-200w/L; adjusting the temperature to 20-60 DEG C in the vibration process; and separating by a centrifuge and drying in a vacuum drying box at 50-60 DEG C for 22-26 hours to realize the modification of the active carbon. According to the active carbon modification method, the removing rate of the organic pollutants in the raw water by the modified active carbon can be up to 71.67% at maximum; the removing rate of the organic pollutants in the raw water by the modified active carbon is high when the sudden organic pollution of the drinking water is emergently treated, and the removing effect is good.
Description
Technical field
The present invention relates to a kind of modifying method of activated carbon, be mainly used in drinking water emergency process, be a kind of before add Powdered Activated Carbon in the former water being subject to organic contamination first with ultrasonication active carbon powder to improve the method for organic pollutant removal rate.
Background technology
Gac is as the environmentally friendly sorbent material of one, there is stronger adsorptivity and catalytic performance, raw material is sufficient and security is high, acid and alkali-resistance, heat-resisting, the water insoluble and advantage such as organic solvent, easy regeneration, to pollution substance all kinds of in water body, all there is a certain proportion of adsorption effect, therefore, gac more and more comes into one's own in water treatment.But, due to normal activated carbon have that ash content is high, pore volume is little, micropore distribution is wide, specific surface area is little and adsorption selectivity such as to differ from the feature, add some restrictions of its surface functional group and electrochemical properties, make it to the Adsorption limited use of pollutent, the requirement of domestic and international market can not be met far away.
Permanganate index is one of important indicator judging surface water, tap water and sanitary sewage water quality.Its value is higher, just represents that the Organic pollutants in water body are more serious.If do not processed, these pollutents not only can destroy the ecosystem of water body, if people with the biology in water for food, more can cause cancer, deformity, the generation of sudden change, extremely dangerous to people.In addition, if irrigate with contaminated river, then plant, farm crop also can be affected, easy poor growth, and people can not take food these crops.The method of present multiplex charcoal absorption reduces the permanganate index in former water, but, the existing gac for removing former organic pollutants is to the limited sorption capacity of former organic pollutants, poor removal effect, and in order to improve the adsorptive power of gac to former organic pollutants, by ultrasonically-modified method, modification is carried out to the existing Powdered Activated Carbon for removing former organic pollutants, through the gac that ultrasonic vibration is modified, its gap, specific surface area and loading capacity all can obtain expanding the removal ability to promote pollutent.
Summary of the invention
In order to solve the problem of existing normal activated carbon to former organic pollutants adsorption effect difference, the invention provides a kind of modifying method of activated carbon for removing former organic pollutants, for tap water burst Organic pollutants accident provides a kind of effective treatment process.
A kind of modifying method of activated carbon for drinking water emergency process sudden organic pollution, carry out in accordance with the following methods: put into ultrasonic generator and shake 10 ~ 30min by mixing with pure water after Powdered Activated Carbon pre-treatment with the sound intensity of 100 ~ 200w/L, the mass ratio of described pretreated Powdered Activated Carbon and pure water is 1:6 ~ 7,20 ~ 60 degrees Celsius are adjusted the temperature in concussion process, after being separated with whizzer in the vacuum drying oven of 50 ~ 60 degrees Celsius dry 22 ~ 26 hours, namely achieve the modification of gac.
In aforesaid method, described Activated Carbon Pretreatment method is: added in excessive deionized water by Powdered Activated Carbon and boil 30 ~ 40min, the mass ratio of described Powdered Activated Carbon and deionized water is 1:6 ~ 7, to remove ash content and the impurity of activated carbon surface becoming clearly with deionized water wash to water again, then the Powdered Activated Carbon washed is placed in the loft drier inner drying 22 ~ 26h of 100 ~ 110 degrees Celsius.
The present invention puts into ultrasonic generator after being mixed with a certain amount of pure water by the Powdered Activated Carbon being used for removing former organic pollutants and carries out modification, due to hyperacoustic " acoustic cavitation " effect, original for activated carbon minim gap can be expanded by its shockwave produced and microjet, expand the specific surface area of activated carbon, improve the loading capacity of activated carbon.Due to the effect of free-radical oxidn and ultrasonic resonance, through modified gac, the adsorptive power of former organic pollutants is strengthened, when processing former organic pollutants, 71.67% be can reach to former organic pollutants clearance, compared with the Powdered Activated Carbon of non-modified, the modified clearance of gac to organic pollutants of the present invention is high, and removal effect is good, has the adsorption effect good to organic pollutant when dosage is 30mg/L.The modified gac of the present invention also can be used for the conventional process flow of water factory.
Embodiment
Below technical scheme of the present invention is further described, but does not limit to so, everyly technical solution of the present invention is modified or equivalently to replace, and do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in protection scope of the present invention.
Embodiment one: present embodiment is carried out in accordance with the following methods for the Powdered Activated Carbon method of modifying removing former organic pollutants:
One, 30min is boiled for the Powdered Activated Carbon being used for removing former organic pollutants adds in excessive deionized water by the ratio of 1:6 in mass ratio, to remove ash content and the impurity of activated carbon surface becoming clearly with deionized water wash to water again, then the Powdered Activated Carbon washed is placed in the loft drier inner drying 24h of 100 degrees Celsius;
Two, put into ultrasonic generator after being mixed according to the ratio that mass ratio is 1:6 with pure water by above-mentioned pretreated Powdered Activated Carbon and shake 20 ~ 30min with the sound intensity of 100w/L, 60 degrees Celsius are adjusted the temperature in concussion process, after being separated with whizzer in the vacuum drying oven of 60 degrees Celsius dry 24 hours, namely achieve the modification of gac.
The specific surface area of the gac that present embodiment is modified is 1030.407m
2/ g, reaches as high as 71.67% to the clearance of former organic pollutants.
With initial permanganate index 16mg/L, the former water of ammonia nitrogen 2mg/L is example, adopt and through above-mentioned modified Powdered Activated Carbon, it is processed, be 52.4% to the average removal rate of former organic pollutants, and the average removal rate of Powdered Activated Carbon to former organic pollutants after non-modified is only 5.28%.As can be seen here, good to the removal effect of former organic pollutants according to the Powdered Activated Carbon that the method for present embodiment is modified.
Embodiment two: present embodiment is carried out in accordance with the following methods for the Powdered Activated Carbon method of modifying removing former organic pollutants:
10min is shaken with the sound intensity of 200w/L by putting into ultrasonic generator after mixing according to the ratio that mass ratio is 1:7 with pure water after the Powdered Activated Carbon pre-treatment being used for removing former organic pollutants, adjust the temperature to 20 degrees Celsius in concussion process, other steps and parameter identical with embodiment one.
The modified gac specific surface area of present embodiment is 766.2 m
2/ g, reaches as high as 35.2% to the clearance of former organic pollutants.
With initial permanganate index 16mg/L, the former water of ammonia nitrogen 2mg/L is example, adopt and through above-mentioned modified Powdered Activated Carbon, it is processed, to former organic pollutants average removal rate be 22.5%, and the average removal rate of Powdered Activated Carbon to former organic pollutants after non-modified is only 5.28%.As can be seen here, good to the removal effect of former organic pollutants according to the Powdered Activated Carbon that the method for present embodiment is modified.
Claims (4)
1., for a modifying method of activated carbon for drinking water emergency process sudden organic pollution, it is characterized in that described modification method is as follows:
Powdered Activated Carbon is added in excessive deionized water and boils, to remove ash content and the impurity of activated carbon surface becoming clearly with deionized water wash to water again, then the Powdered Activated Carbon washed is placed in the loft drier inner drying 22 ~ 26h of 100 ~ 110 degrees Celsius, put into ultrasonic generator and shake 10 ~ 30min by mixing with excessive pure water through the pretreated Powdered Activated Carbon of aforesaid method with the sound intensity of 100 ~ 200w/L, 20 ~ 60 degrees Celsius are adjusted the temperature in concussion process, after being separated with whizzer in the vacuum drying oven of 50 ~ 60 degrees Celsius dry 22 ~ 26 hours, namely the modification of gac is achieved.
2. a kind of modifying method of activated carbon for drinking water emergency process sudden organic pollution according to claim 1, is characterized in that the mass ratio of described pretreated Powdered Activated Carbon and pure water is 1:6 ~ 7.
3. a kind of modifying method of activated carbon for drinking water emergency process sudden organic pollution according to claim 1, is characterized in that the mass ratio of described Powdered Activated Carbon and deionized water is 1:6 ~ 7.
4. a kind of modifying method of activated carbon for drinking water emergency process sudden organic pollution according to claim 1, is characterized in that described boiling time is 30 ~ 40min.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087374A (en) * | 1990-03-05 | 1992-02-11 | Ding Lambert L | Removal of contaminates from granular solids |
| JP2000229206A (en) * | 1999-02-05 | 2000-08-22 | Mitsubishi Electric Corp | Filter type water treating device and method for washing filter medium |
| CN101559379A (en) * | 2009-05-22 | 2009-10-21 | 昆明理工大学 | Catalyst for hydrolyzing carbonyl sulfur and preparation method thereof |
| CN101612554A (en) * | 2009-08-13 | 2009-12-30 | 沈阳建筑大学 | The preparation method of conducting polymer modified active carbon |
| CN101637716A (en) * | 2009-07-27 | 2010-02-03 | 哈尔滨工业大学 | Modifying method of activated carbon for removing bromate in raw water |
| CN101920191A (en) * | 2010-06-12 | 2010-12-22 | 华中农业大学 | Application of activated carbon modified material and application in removing arsenic from water |
| CN102580679A (en) * | 2012-01-13 | 2012-07-18 | 昆明理工大学 | Method for preparing modified microwave activated carbon sorbent |
| CN103071455A (en) * | 2013-02-26 | 2013-05-01 | 昆明理工大学 | Preparation method of composite adsorption purifying agent |
| CN103321036A (en) * | 2013-06-29 | 2013-09-25 | 西北工业大学 | Method for electrochemically modifying surface of ultrasonic-enhanced carbon fiber |
-
2014
- 2014-01-17 CN CN201410021711.7A patent/CN103754977B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087374A (en) * | 1990-03-05 | 1992-02-11 | Ding Lambert L | Removal of contaminates from granular solids |
| JP2000229206A (en) * | 1999-02-05 | 2000-08-22 | Mitsubishi Electric Corp | Filter type water treating device and method for washing filter medium |
| CN101559379A (en) * | 2009-05-22 | 2009-10-21 | 昆明理工大学 | Catalyst for hydrolyzing carbonyl sulfur and preparation method thereof |
| CN101637716A (en) * | 2009-07-27 | 2010-02-03 | 哈尔滨工业大学 | Modifying method of activated carbon for removing bromate in raw water |
| CN101612554A (en) * | 2009-08-13 | 2009-12-30 | 沈阳建筑大学 | The preparation method of conducting polymer modified active carbon |
| CN101920191A (en) * | 2010-06-12 | 2010-12-22 | 华中农业大学 | Application of activated carbon modified material and application in removing arsenic from water |
| CN102580679A (en) * | 2012-01-13 | 2012-07-18 | 昆明理工大学 | Method for preparing modified microwave activated carbon sorbent |
| CN103071455A (en) * | 2013-02-26 | 2013-05-01 | 昆明理工大学 | Preparation method of composite adsorption purifying agent |
| CN103321036A (en) * | 2013-06-29 | 2013-09-25 | 西北工业大学 | Method for electrochemically modifying surface of ultrasonic-enhanced carbon fiber |
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